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Question:
(a) Besides privacy, what other security functions does Pretty Good Privacy (PGP) provides?
(b) What is the Post Office Protocol (POP) used for? Why is it important that POP uses authentication, whereas the Simple Mail Transfer Protocol (SMTP) does not?
(c) When worms attack the e-mail client, the e-mail servers (the Mail Transfer Agent (MTA) and the Mail Delivery Agent (MDA)) get overwhelmed as well. Explain why.
(d) What do you meant by spam? Blocking lists are typically used to prevent spam. Discuss the effectiveness of using blocking list. How do ISPs prevent their clients from sending spam?
(e) What do you understand by the term Virtual Private network (VPN)? Describe how IPSec can be used to implement a VPN.
(f) Compare and contrast IPSec and SSH.
Question : (a) What do you meant by the term "Bastion Host"? What is its use? (b) "Hostile" Java applets will do undesirable actions. Mention two problems caused by Hosti
Base lining • Organizations do not have any contact to each other • No two organizations are identical to each other • The best practices are a moving target • K
algorithm on simple intrest
Encode the following plaintext, using the Caesar cipher: LORD OF THE RINGS b) The following ciphertext jw njbh lxmn cx kanjt has been encoded using a
Problem 1: a) One of the limitations of file processing systems is data inconsistency. Briefly explain with the help of an example what do you understand by this phrase. b)
The project will be involving a design and a report of which explain the simulation and how it functions. The aim of the project is to help the administrators and staff at the war
Q1 (15 marks, 5 marks each part): This question has three parts: In a short paragraph (200-300 words) explain the fundamentals of Packet Switching and how it works. In a short pa
QUESTION (a) Briefly explain the contents of the Needs Analysis, which is step in the process of network design. (b) Describe on the three ways of improving the performan
project on ensuring data securities on cloud computing
Network can be distinguished by shape. According to which there are three most popular methodologies, which are shown as follows; Star Ring Bus
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